I know the story behind the incident, my question is who in the Gambino Family was it that Birns arranged the loan through. I'm aware Billy Cox was the courier Birns hired to pick up the money from New York for Danny Greene.

The general story seems repeated a lot but there is rarely deeper insight given as to who in the Gambino Family Birns would have associated with through loansharking, being a major national loanshark himself, he surely knew plenty. Moreover, he was more than aligned with the Cleveland Family who at the time was controlled by the Genovese Family.
So I'm just curious who pressed Birns on the original $75,,000 from the Gambino's because it would seem to have been a pure business decision that in turn set off the Greene Wars and the chain of events that lead to some of at the time the highest level informants ever, and the start of a decline of both Cleveland and LA